1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package downloader
import (
"encoding/json"
"io/ioutil"
"net/url"
"os/exec"
"time"
"github.com/mammothbane/thulani-go/wav"
"github.com/op/go-logging"
)
var log = logging.MustGetLogger("downloader")
// responsible for decoding from youtube
type videoInfo struct {
Title string `json:"fulltitle"`
UrlStr string `json:"url"`
DurationSec int `json:"duration"`
Url *url.URL `json:"-"`
Duration time.Duration `json:"-"`
}
func info(inUrl string) (*videoInfo, error) {
dl := exec.Command("youtube-dl", "-f", "bestaudio", "-x", "-j", inUrl)
outpipe, err := dl.StdoutPipe()
if err != nil {
return nil, err
}
errpipe, err := dl.StderrPipe()
if err != nil {
return nil, err
}
err = dl.Start()
if err != nil {
log.Errorf("starting youtube-dl failed")
return nil, err
}
o, ierr := ioutil.ReadAll(outpipe)
if ierr != nil {
log.Errorf("unable to read from output pipe")
return nil, err
}
e, ierr := ioutil.ReadAll(errpipe)
if ierr != nil {
log.Errorf("unable to read from error pipe")
return nil, err
}
if err := dl.Wait(); err != nil {
log.Errorf("error:\n%v", string(e))
return nil, err
}
v := videoInfo{}
if err := json.Unmarshal(o, &v); err != nil {
return nil, err
}
v.Duration = time.Duration(v.DurationSec) * time.Second
v.Url, err = url.Parse(v.UrlStr)
//tgt, err := url.Parse(string(o))
//out := tgt.Scheme + "://" + tgt.Host + tgt.Path + "?" + tgt.Query().Encode()
return &v, err
}
type wavBundle struct {
wav *wav.Wav
cleanup func()
}
|
